#
# Try to find GLEW library and include path.
# Once done this will define
#
# GLEW_FOUND
# GLEW_INCLUDE_PATH
# GLEW_LIBRARY
#

IF (WIN32)
    FIND_PATH( GLEW_INCLUDE_PATH GL/glew.h
        $ENV{PROGRAMFILES}/GLEW/include
        ${GLEW_ROOT_DIR}/include
        DOC "The directory where GL/glew.h resides")

    FIND_LIBRARY( GLEW_LIBRARY
        NAMES glew GLEW glew32 glew32s
        PATHS
        $ENV{PROGRAMFILES}/GLEW/lib
        ${GLEW_ROOT_DIR}/lib
        ${PROJECT_SOURCE_DIR}/src/nvgl/glew/bin
        ${PROJECT_SOURCE_DIR}/src/nvgl/glew/lib
        DOC "The GLEW library")
ELSE (WIN32)
    FIND_PATH( GLEW_INCLUDE_PATH GL/glew.h
        /usr/include
        /usr/local/include
        /sw/include
        /opt/local/include
        ${GLEW_ROOT_DIR}/include
        DOC "The directory where GL/glew.h resides")

    # Prefer the static library.
    FIND_LIBRARY( GLEW_LIBRARY
        NAMES libGLEW.a GLEW
        PATHS
        /usr/lib64
        /usr/lib
        /usr/local/lib64
        /usr/local/lib
        /sw/lib
        /opt/local/lib
        ${GLEW_ROOT_DIR}/lib
        DOC "The GLEW library")
ENDIF (WIN32)

SET(GLEW_FOUND "NO")
IF (GLEW_INCLUDE_PATH AND GLEW_LIBRARY)
    SET(GLEW_LIBRARIES ${GLEW_LIBRARY})
    SET(GLEW_FOUND "YES")
ENDIF (GLEW_INCLUDE_PATH AND GLEW_LIBRARY)

INCLUDE(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(GLEW DEFAULT_MSG GLEW_LIBRARY)
